Geology and geoscience
Learn about Ontario’s geology, the Ontario Geological Survey and access geoscience applications, maps and data.
About the Ontario Geological Survey’s (OGS) services, projects and research, the study of the earth and how the OGS helps inform mineral exploration and land use planning.
Ontario’s Geoscience Laboratories is a full service inorganic geoanalytical facility providing research quality analyses and services.
Field work opportunities for undergraduate and graduate students with the Ontario Geological Survey.
Learn about the geological features and rich mining history of Northern Ontario by taking a self-guided GeoTour.
Applications, maps and databases
An online database of our publicly available digital data.
Get geoscience data on mineral exploration activities, bedrock geology, quarternary geology and more.
Access Ontario geology maps dating back to 1891 in map format (PDF).
Access Ontario geology reports, maps and digital data dating back to 1891 in report format (PDF).
Reports and publications
Updates on the latest geology maps, reports and digital data published by the Ontario Geological Survey.
Read the annual highlights of the Ontario Geological Survey’s mapping and geoscientific research.
Reports published each year highlighting areas for potential mineral exploration and development.
The latest news on mineral sector activity in Ontario.